rs431825177

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_001142.2(AMELX):​c.131G>A​(p.Ser44Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000207 in 1,209,054 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 6 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as not provided (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S44R) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000089 ( 0 hom., 0 hem., cov: 23)
Exomes 𝑓: 0.000022 ( 0 hom. 6 hem. )

Consequence

AMELX
NM_001142.2 missense

Scores

1
15

Clinical Significance

not provided no classification provided O:1

Conservation

PhyloP100: 0.0330

Publications

0 publications found
Variant links:
Genes affected
AMELX (HGNC:461): (amelogenin X-linked) This gene encodes a member of the amelogenin family of extracellular matrix proteins. Amelogenins are involved in biomineralization during tooth enamel development. Mutations in this gene cause X-linked amelogenesis imperfecta. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]
ARHGAP6 (HGNC:676): (Rho GTPase activating protein 6) This gene encodes a member of the rhoGAP family of proteins which play a role in the regulation of actin polymerization at the plasma membrane during several cellular processes. This protein is thought to have two independent functions, one as a GTPase-activating protein with specificity for RhoA, and another as a cytoskeletal protein that promotes actin remodeling. Multiple alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.21069711).
BS2
High Hemizygotes in GnomAdExome4 at 6 XL,AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001142.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
AMELX
NM_001142.2
MANE Select
c.131G>Ap.Ser44Asn
missense
Exon 4 of 6NP_001133.1Q99217-1
ARHGAP6
NM_013427.3
MANE Select
c.589-43557C>T
intron
N/ANP_038286.2O43182-1
AMELX
NM_182680.1
c.173G>Ap.Ser58Asn
missense
Exon 5 of 7NP_872621.1Q99217-3

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
AMELX
ENST00000380714.7
TSL:1 MANE Select
c.131G>Ap.Ser44Asn
missense
Exon 4 of 6ENSP00000370090.3Q99217-1
AMELX
ENST00000380712.7
TSL:1
c.173G>Ap.Ser58Asn
missense
Exon 5 of 7ENSP00000370088.3Q99217-3
ARHGAP6
ENST00000337414.9
TSL:1 MANE Select
c.589-43557C>T
intron
N/AENSP00000338967.4O43182-1

Frequencies

GnomAD3 genomes
AF:
0.00000895
AC:
1
AN:
111765
Hom.:
0
Cov.:
23
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000188
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000327
AC:
6
AN:
183446
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000732
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000219
AC:
24
AN:
1097289
Hom.:
0
Cov.:
31
AF XY:
0.0000165
AC XY:
6
AN XY:
362671
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
26384
American (AMR)
AF:
0.00
AC:
0
AN:
35205
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19375
East Asian (EAS)
AF:
0.00
AC:
0
AN:
30191
South Asian (SAS)
AF:
0.00
AC:
0
AN:
54113
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
40514
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4113
European-Non Finnish (NFE)
AF:
0.0000285
AC:
24
AN:
841330
Other (OTH)
AF:
0.00
AC:
0
AN:
46064
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.453
Heterozygous variant carriers
0
2
4
5
7
9
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00000895
AC:
1
AN:
111765
Hom.:
0
Cov.:
23
AF XY:
0.00
AC XY:
0
AN XY:
33937
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
30653
American (AMR)
AF:
0.00
AC:
0
AN:
10598
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2639
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3583
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2662
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
6081
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
240
European-Non Finnish (NFE)
AF:
0.0000188
AC:
1
AN:
53112
Other (OTH)
AF:
0.00
AC:
0
AN:
1508
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000113
ExAC
AF:
0.0000330
AC:
4
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

ClinVar submissions
Significance:not provided
Revision:no classification provided
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
-
X-linked amelogenesis imperfecta hypoplastic/hypomaturation 2 (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.087
BayesDel_addAF
Benign
-0.28
T
BayesDel_noAF
Benign
-0.45
CADD
Benign
8.3
DANN
Benign
0.84
DEOGEN2
Uncertain
0.53
D
FATHMM_MKL
Benign
0.13
N
LIST_S2
Benign
0.51
T
M_CAP
Benign
0.031
D
MetaRNN
Benign
0.21
T
MetaSVM
Benign
-0.60
T
MutationAssessor
Benign
1.1
L
PhyloP100
0.033
PrimateAI
Benign
0.44
T
PROVEAN
Benign
-1.0
N
REVEL
Benign
0.28
Sift
Benign
0.23
T
Sift4G
Benign
0.15
T
Polyphen
0.0
B
Vest4
0.30
MVP
0.89
MPC
0.24
ClinPred
0.024
T
GERP RS
-6.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.15
gMVP
0.39
Mutation Taster
=91/9
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs431825177; hg19: chrX-11316384; API